MaxDiff is usually seen as an advanced research method, so the majority of products offering MaxDiff are very expensive. This list includes free options, Enterprise versions, and more.

Struggling to think of customer problems? 7 techniques to brainstorm a fuller list, from reframing outcomes to solo storming, each with a worked example.

Your product solves a handful of pains, not thousands. Why B2B SaaS teams should stop chasing every customer problem, with three principles from April Dunford.

Turn a messy list of ideas into a clear order. Seven ranking methods, from pairwise comparison to MaxDiff, with the scenarios that decide which one to use.

Google Forms, SurveyMonkey and Typeform can't rank images. The fix is pairwise ranking, and OpinionX is the only free image ranking tool that does it.

Ranking a list of 5 options is easy. There’s an endless number of survey tools you can find online for it. But what should you use when you’re trying to rank a list that’s longer than 10 options? Or 100+ options?

A Constant Sum question gave Google Docs' team one clear number (89% of points on formatting) and pointed them at their biggest problem. Here's how the method works.

Points Allocation (aka Constant Sum) is a survey question where respondents allocate a budget of points amongst a set of options according to their personal preferences. Here’s an example of a Points Allocation question…

Validating a product idea isn't about your idea, it's about finding a high-priority problem to solve. The 3-step Discovery Sandwich for product teams.

Turn focus group discussion into countable data. Four online ranking methods and three sticky-note ones, with the design principles that make each one work.

The best customer segment is the one already searching for what you do. How a viral Reddit post taught OpinionX to spot it.

Medium chased a "Total Time Reading" North Star Metric into clickbait and ads. Substack skipped it and won. What that teaches us about metrics-led strategy.

7 principles for writing research-ready problem statements, with before-and-after examples, plus 7 ways to brainstorm the customer problems worth solving.

A 2x2 framework for iterating toward product/market fit. Rank value and pain statements by customer and by product to know what to work on next.

Most MVP definitions are too vague to act on. A good MVP tests one thing: whether your core innovation solves a high-priority problem for one segment.

The Lean Startup tells founders to build a prototype first. That's backwards for pre-PMF startups. Here's what to read instead: The Mom Test and Obviously Awesome.

The Discovery Sandwich is a three-step product- or customer-discovery research framework for identifying the set of possible options, prioritizing which to focus on, and gathering rich contextual insights to inform the right decision.

Forced choice removes the fence-sitting options so people commit to a real preference. What it is, when to use it, and which free tools can build one.

David Friedberg sold his 7-year-old startup WeatherBill for almost $1 billion in 2013. But WeatherBill almost didn't survive to see that day. If it wasn’t for one finely-tuned pivot in May 2010, which I deconstruct in this essay, the company was destined for certain failure.

Most survey tools can't run a proper ranking survey for free. Here's how the 7 most popular tools compare, and which one is actually built for ranking.